How to solve desktop app doesn't start (error missing Qt5Core.dll)

Issue Description

You have installed the Rainbow Desktop App and get following missing Qt5Core.dll error message when starting the app

Root cause:

a possible reason for this is that on your Windows PC, the files with extension .vbs are not associated to Microsoft ® Windows Based Script Host

Most of the time in error case, the file extension .vbs has been associated to Notepad instead of Microsoft ® Windows Based Script Host. This wrong association will prevent execution of some installation files and result in the issue described above

How to fix this issue:

To fix this issue you just need restore the good file association for file .vbs extension.